ATE23768T1 - METHOD AND APPARATUS FOR IMAGING A TEMPLATE ON AN OUTPUT MEDIA. - Google Patents
METHOD AND APPARATUS FOR IMAGING A TEMPLATE ON AN OUTPUT MEDIA.Info
- Publication number
- ATE23768T1 ATE23768T1 AT81102854T AT81102854T ATE23768T1 AT E23768 T1 ATE23768 T1 AT E23768T1 AT 81102854 T AT81102854 T AT 81102854T AT 81102854 T AT81102854 T AT 81102854T AT E23768 T1 ATE23768 T1 AT E23768T1
- Authority
- AT
- Austria
- Prior art keywords
- template
- imaging
- output media
- sampled
- increase
- Prior art date
Links
- 238000000034 method Methods 0.000 title abstract 2
- 238000003384 imaging method Methods 0.000 title 1
- 238000006073 displacement reaction Methods 0.000 abstract 2
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
- H04N1/40—Picture signal circuits
Abstract
System and method for forming a halftone image by scanning without visible moire interference. Alternate scan lines are sampled with clock signals of different phases to produce a displacement between adjacent scan lines in the output image. This displacement reduces the increase in spot width which would otherwise produce moire interference, with no increase in the rate at which the video signal is sampled.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US06/142,884 US4336558A (en) | 1980-04-23 | 1980-04-23 | Imaging system and method with reduced moire interference |
EP81102854A EP0038515B1 (en) | 1980-04-23 | 1981-04-14 | Method and apparatus for reproduction of an original on a copy medium |
Publications (1)
Publication Number | Publication Date |
---|---|
ATE23768T1 true ATE23768T1 (en) | 1986-12-15 |
Family
ID=22501672
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
AT81102854T ATE23768T1 (en) | 1980-04-23 | 1981-04-14 | METHOD AND APPARATUS FOR IMAGING A TEMPLATE ON AN OUTPUT MEDIA. |
Country Status (7)
Country | Link |
---|---|
US (1) | US4336558A (en) |
EP (1) | EP0038515B1 (en) |
JP (1) | JPS5711054A (en) |
AT (1) | ATE23768T1 (en) |
AU (1) | AU538707B2 (en) |
CA (1) | CA1182553A (en) |
DE (1) | DE3175643D1 (en) |
Families Citing this family (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
ATE58986T1 (en) * | 1981-05-20 | 1990-12-15 | Hell Rudolf Dr Ing Gmbh | SCANNING METHODS AND SCANNING SHUTTER FOR SUPPRESSING MOIRE WHEN SCANNING SCREENED ORIGINALS. |
US4600951A (en) * | 1983-12-20 | 1986-07-15 | At&T Technologies, Inc. | Scanning sample, signal generation, data digitizing and retiming system |
US4680596A (en) * | 1984-08-02 | 1987-07-14 | Metromedia Company | Method and apparatus for controlling ink-jet color printing heads |
US5121445A (en) * | 1986-07-01 | 1992-06-09 | Konica Corporation | Method and apparatus for reading image |
US4926267A (en) * | 1989-05-26 | 1990-05-15 | Nynex Corporation | Reproduction of halftone original with reduced moire |
EP0457482A1 (en) * | 1990-05-18 | 1991-11-21 | Crosfield Electronics Limited | Scanning method and apparatus |
US5107188A (en) * | 1991-01-18 | 1992-04-21 | Sun Microsystems, Inc. | Method and apparatus for cancellation of Moire interference in color cathode ray tube displays |
US5592592A (en) * | 1994-07-01 | 1997-01-07 | Seiko Epson Corporation | Method and apparatus for minimizing artifacts in images produced by error diffusion halftoning utilizing ink reduction processing |
US5602653A (en) * | 1994-11-08 | 1997-02-11 | Xerox Corporation | Pixel pair grid halftoning for a hyperacuity printer |
US5991513A (en) * | 1997-09-30 | 1999-11-23 | Levien; Raphael L | Method and apparatus for suppressing moire patterns |
US6320680B1 (en) * | 1998-06-18 | 2001-11-20 | Digimarc Corporation | Stochastic scanning documents to change moire effects |
US6376834B1 (en) * | 1999-10-26 | 2002-04-23 | Hewlett-Packard Company | Moire interference pattern reduction for scanning of half-toned images |
US6873318B1 (en) | 2001-05-23 | 2005-03-29 | National Semiconductor Corporation | Method and apparatus for addressing beat patterns in an integrated video display system |
US6850651B2 (en) * | 2001-07-02 | 2005-02-01 | Corel Corporation | Moiré correction in images |
US6950211B2 (en) * | 2001-07-05 | 2005-09-27 | Corel Corporation | Fine moire correction in images |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3848083A (en) * | 1965-01-04 | 1974-11-12 | Xerox Corp | Staggered scan facsimile |
US3816659A (en) * | 1972-10-13 | 1974-06-11 | Perkin Elmer Corp | Scanning apparatus |
US3898083A (en) * | 1973-01-05 | 1975-08-05 | Xerox Corp | High sensitivity visible infrared photoconductor |
DE2413034C3 (en) * | 1974-03-19 | 1983-11-17 | Dr.-Ing. Rudolf Hell Gmbh, 2300 Kiel | Method and arrangement for avoiding errors in the reproduction of original images |
US4068265A (en) * | 1974-11-25 | 1978-01-10 | Eli S. Jacobs | Method and apparatus for sampling and reproducing television information |
US4131916A (en) * | 1975-12-31 | 1978-12-26 | Logetronics, Inc. | Pneumatically actuated image scanning reader/writer |
US4081842A (en) * | 1976-06-14 | 1978-03-28 | Eocom Corporation | Facsimile system |
-
1980
- 1980-04-23 US US06/142,884 patent/US4336558A/en not_active Expired - Lifetime
-
1981
- 1981-04-14 DE DE8181102854T patent/DE3175643D1/en not_active Expired
- 1981-04-14 AT AT81102854T patent/ATE23768T1/en not_active IP Right Cessation
- 1981-04-14 EP EP81102854A patent/EP0038515B1/en not_active Expired
- 1981-04-20 JP JP5869181A patent/JPS5711054A/en active Pending
- 1981-04-22 CA CA000375910A patent/CA1182553A/en not_active Expired
- 1981-04-22 AU AU69722/81A patent/AU538707B2/en not_active Ceased
Also Published As
Publication number | Publication date |
---|---|
AU538707B2 (en) | 1984-08-23 |
DE3175643D1 (en) | 1987-01-08 |
CA1182553A (en) | 1985-02-12 |
EP0038515A3 (en) | 1983-11-16 |
AU6972281A (en) | 1981-10-29 |
EP0038515B1 (en) | 1986-11-20 |
EP0038515A2 (en) | 1981-10-28 |
US4336558A (en) | 1982-06-22 |
JPS5711054A (en) | 1982-01-20 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
REN | Ceased due to non-payment of the annual fee |